Centrifugal machine.



4 N0 IODEL.

P. BOULANGER.

PATENTE!) 00T. 2o, 190.3.;

GBNTRIFUGAL MACHINE.

APPLIOATIN FILED JUNE 24, 1903.

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2 SHEETS-sum1] A TTOHNE Y S in: dams versus pq. more n PATENTBD OCT. 20, 1903. P. BULANGBR. CENTRIPUGL MACHINE.

APPLIGATION FILED `.TU'NE 24, 1903.'

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Lio. 741,999.

Patented October 20, i913.

PATENT OFFICE.

PAUL BOULANGER, or HAVANA, oUA.

CENTRIFUGAL MACHINE.

SPECIFICATION forming part of Letters Patent No. 741,999, dated october 2o, 1903.

Application illed J' une 24, 1903.

T0 tl whom tV may concern.' A Be it known that I, PAUL BoULANeER,'a citizen of France, anda resident of Havana, g in the Republic of Cuba, have invented a new? and Improved Centrifugal Machine, of which1 the following is a full, clear, and exactdescription. A

This invention relates to centrifugal machines; and it consists, substantially, in the construction, organization, and combinations of parts hereinafter particularly described, and pointed out in the claims.

Though applicable to other purposes in the arts, my improvements are intended more especially for use in separating molasses from` sugar, and one of the principal objects of my invention is to provide simple and eective means by which such operations may be effected rapidly and ina reliable manner as` well as economically and continuously. A

A further object is to overcome numerous disadvantages and objections frequently en-` countered in the use of many machines hitherto devised with like ends in view and also to dispense with much of the labor (both skilled and unskilled) usually required to bel employed in connection with such former machines.

A still further object of the invention is to provide a machine of the character referred to which may be easilyregulated or controlled as well as readily repaired and which `also possesses the capacity for long and repeated service. i

The above and additional objects are attained by means substantially suchas are` illustrated in the accompanying drawings, in which similar characters of reference indicate corresponding parts in all the figures.

Figure l is a longitudinal sectional elevation of a centrifugal machine embodying my improvements. Fig. 2 is a transverse sectional view taken substantially in the plane of the line 2 2 of Fig. 1; .and Fig. 3 is a similar View to the preceding figure, taken on the line outer stationary casing in which is located:

practically a perforated drum having suitable means for rotating the same, and within said Serial No. 152.960. (No model.)

drum is located to turn a spiral conveyer of 'special construction and also having meansfor rotating the same independently of said drum. The material to be treat-ed is fed in at one end of the drum, and during the revolutions imparted to the latter the molasses is continuously thrown outwardly by centrifugal force'and passes into the outer casing, from whence it is carried off, while the sugar remainingin said drum is conveyed to the outlet end of the machine and discharged.

While I have herein represented my improvements in a certain preferred embodiment, it will be understood, of course, that I am not limited to the precise details thereof in practice, since immaterial changes therein may be resorted to coming within the scope of my invention.

Specific reference being had to the accom- 5 panying drawings by the designating characters marked thereon, 1 represents an outer casing preferably mounted upon standards or supports 2 and provided at its lower central part with an outlet 3, which may be provided with a suitable valve, if desired. One end of` said casing is partially closed by a flange 4i, and located within the casing is a drum 5, preferably perforated at 6 and also being preferably daring, as indicated at 7 for substantially the second half of the length thereof. orly by circumferential bands or rings 8, and at the `larger end thereof is fastened at 9 a structure comprising a ring 10, within which are spokes 11, radiating from a central hub 12, said ring having secured thereto substantiallya circular skeleton frame 13,havin g arms 14, forming circumferentially-disposed openings 15 for passage of the separated sugar to 'an outlet 16 therefor, the outer ends of said ribs 'being secured in any suitable manner to the inwardly-projecting flange 17 of a disk 18, provided with a central outwardly-projecting hub 19, through which passes one end portion of an operating-shaft 20, keyed to the said hub at 2l. Said shaft 20 is supported by suitable pillow blocks or bearings 22 and 23, disposed at proper height, as shown, and one end of this shaft is provided with a pulley 23a, which may be connected with any suitable driving power. Secured to that end of the drum 5 projecting beyond the flange 4 of the This drum is strengthened exteri- ICO casing lis a ring 24, which turns (with the drum 5) upon suitable antifriction bodies or wheels 25, mounted in bearings 26 and 27 therefor, as shown, and extending partly into the open end of the drum through said ring 24 is a spout 28, leading from any suitable source for delivering to the interior of said drum the materials to be separated or treated. The said shaft 2O passes through a hollow shaft 29, one end of which is supported in bearings 30 therefor, located or fitted within a central recess 3l, formed on the inner side of the hub 19 and the other end of which is supported at 32 in bearings which are in alinement with the bearing 23, this hollow shaft also passing centrally through the hereinbefore-mentioned hub 12, the two being independently rotatable, (the latter rotating with the drum 5,) as will be apparent. Secured to the said hollow shaft 29 in any suitable manner and substantially centrally thereof is a collar 33, formed, preferably, of two parts clamped together at 34, (see Fig. 3,) said collar having rigid therewith a radially-projecting arm 35, to which is secured at 36 an intermediate part of a spiral rib-like structure 37, eX- tending practically from one end to the other interiorly of the drum 5, said collar and arm preserving the relative position of said structure lengthwise of said drum. The shaft 29 is provided with a pulley 38, which may be connected with any suitable driving power for said shaft, and in the operation of the machine it will be seen that as the material is fed into the drum 5 from the delivery-pipe 28 such material will be agitated and, due to the rapid revolutions imparted to said drum 5, the molasses or juices will be thrown outwardly through the perforations 6 by centrifugal force, While the sugar or solid matter will be conveyed along by the independently-rotating spiral structure 37, the molasses flowing out at 3 and the sugar being discharged at the outlet 16, as is apparent, the openings l5 permitting proper passage of the sugar to 1 said outlet during the revolutions of the hereinbefore-mentioned skeleton frame with said drum. This drum is shown as perforated prac- 1, and thus the full operation of the machinev will be fully understood Without further explanation, it being added, however, that the entire structure is preferably mounted on pillars or uprights 40, having suitable bases 41.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A centrifugal machine, comprising anv outer stationary casing, a rotatable perforated drum therein, the said drum flaring from the center to one end thereof, a skeleton frame connected to the Haring end of said drum, and constructed with circumferentially-disposed openings, and an independently-rotatable spiral conveyer Working in said drum.

2. A centrifugal machine, comprising an outer stationary casing, having an outlet for molasses and another outlet for sugar, a perforated drum therein, provided at one end with a disk, having a hub formed with an inner recess, a suitably-supported rotatable shaft passing through said hub and keyed thereto, a bearing located in said recess, a hollow independently-rotatable shaft fitting over the shaft rst named and having one end thereof working in said bearing, a bear-` ing supporting the other end of this shaft, and a spiral conveyer connected to and operated by said hollow shaft.'

3. A centrifugal machine, comprising an outer stationary casing, having an outlet for molasses and another outlet for sugar, a perforated drum therein, provided at one end with a disk, having a hub formed with an inner recess, a suitablysupported rotatable shaft passing through said hub and keyed thereto, a bearing located in said recess, a hollow independently-rotatable shaft fitting over the shaft rst named and having one end thereof working in said bearing, a bearing supporting the other end of this shaft, a spiral conveyer connected to and operated by said hollow shaft, and a skeleton-like structure between said disk and corresponding end of the drum, said structure being formed with circumferentially-disposed openings.

4. A centrifugal machine, comprising an outer stationary casing, a perforated drum provided with a rotatable shaft, an independently-rotatable hollow shaft fitting over the rst-named shaft, a spiral rib-like structure extending from end to end of the drum, and a clamp comprising two members fitted to said hollow shaft, substantially central thereof, one of said members having a radiallyprojecting arm rigid therewith and connected to a part of said conveyer.

5. A centrifugal machine, comprising an outerstationary casing, a rotatable perforated drum in said casing, a ring secured to one end of the drum and connected by spokes with a central hub, a skeleton frame secured to said ring and formed with circumferentially-disposed openings and an independently-operated conveyer, within said drum.

6. A centrifugal machine comprising an outer stationary casing, a shaft passing through the same, a perforated drum rotatable with said shaft, a hollow shaft fitting over said first-named shaftand provided Within the drum with a spiral conveyer, the cylinder having a hub at or near one end mounted to turn loosely on said hollow shaft, a ring secured to the other end of said drum, antifriction-'supports on which said ring turns,

IIO

passing through the hub connected with the ring at the end of the drum, a spiral conveyer I 5 connected to and operated by the hollow shaft, and antifriction-Wheels on which the other end of the drum turns, as set forth.

In testimony whereof I have signed my name to this specification in the presence of zo two subscribing Witnesses.

PAUL BOULANGER.

Witnesses:

JAMES H. SPRINGER, ROY H. NEELY. 

